Added extra validation and improved error message on error

Author: ENikS

Abstractions

@@ -5,7 +5,7 @@
     <version>5.9.0</version>
     <authors>Unity Container Project</authors>
     <owners>Unity Container Project</owners>
-    <licenseUrl>https://github.com/unitycontainer/unity/blob/v5.x/LICENSE</licenseUrl>
+    <license>https://github.com/unitycontainer/unity/blob/v5.x/LICENSE</license>
     <projectUrl>https://github.com/unitycontainer/unity</projectUrl>
     <iconUrl>https://avatars1.githubusercontent.com/u/12849707</iconUrl>
     <requireLicenseAcceptance>false</requireLicenseAcceptance>

Container

@@ -182,7 +182,6 @@ Global
 		{510FC085-87EF-4EB8-85EB-6C1E0F629313}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{510FC085-87EF-4EB8-85EB-6C1E0F629313}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{510FC085-87EF-4EB8-85EB-6C1E0F629313}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{510FC085-87EF-4EB8-85EB-6C1E0F629313}.Release|Any CPU.Build.0 = Release|Any CPU
 		{A66DF5B3-583E-4269-A110-7386356584AF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{A66DF5B3-583E-4269-A110-7386356584AF}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{A66DF5B3-583E-4269-A110-7386356584AF}.Release|Any CPU.ActiveCfg = Release|Any CPU
@@ -234,11 +233,8 @@ Global
 		{5F84ACD0-148C-4DE0-ADCA-073B5C66BAD1}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
 		{5F84ACD0-148C-4DE0-ADCA-073B5C66BAD1}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{5F84ACD0-148C-4DE0-ADCA-073B5C66BAD1}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{5F84ACD0-148C-4DE0-ADCA-073B5C66BAD1}.Release|Any CPU.Build.0 = Release|Any CPU
 		{BF0FFC67-E5D8-45CE-95AD-A595F63A37EF}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{BF0FFC67-E5D8-45CE-95AD-A595F63A37EF}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{BF0FFC67-E5D8-45CE-95AD-A595F63A37EF}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{BF0FFC67-E5D8-45CE-95AD-A595F63A37EF}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE